MTD OEM-190-627 User Manual
Operator’s Manual
42-inch Snow Thrower Attachment
For 600-ser ies Lawn Tractors
Model
OEM-190-627
NOTE: This snow thrower attachme nt will NOT fit on all 600-s eries lawn tr actors. It is NOT designed for
and will NOT operate safely or properly on FastAttach™ compatible tractors. Check your tractor’s right fender for the
FastAttach™ label before attempting to mount this attachment.
NOTE: This snow thrower attachme nt will NOT fit on ANY 800-ser ies garden tracto rs, regardless of the tractor’s
FastAttach™ compat ibility.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A.
FORM NO. 770-10056A
(05/00)
FINDING MODEL NUMBER
This Operator’s Manual is an important part of your new snow thrower attachment. It will help you assemble,
prepare and maintain the unit for best performance. Please read and understand what it says.
Before you start assembling your new equipment, please locate the model plate on the
equipment and copy the information from it in the space provided below. The information on the
model plate is very important if you need help from our Customer Support Department or an
authorized dealer.
You can locate the model number by looking on the rear, right portion of the snow thrower impeller housing. A
sample model plate is explained below. For future reference, please copy the model number and the serial number
of the equipment in the space below.
Model Plate
Figure 1
• An example of what the model plate will look like is shown below.
(Model Number)
CLEVELAND, OHIO 44136
(Serial Number)
MTD PRODUCTS INC
Copy the model number here:
Copy the serial number here:
CALLING CUSTOMER SUPPORT
If you have difficulty assembling this product or have any questions regarding the controls, operation or
maintenance of this unit, please call the Customer Support Department.
Call 1- (330) 220-4MTD (4683) or 1- (800)-800-7310 to reach a Customer Support representative.
Please have your unit’s model number and serial number ready when you call. See previous section
to locate this information. You will be asked to enter the serial number in order to process your call.
• Although both numbers are important, you will be asked to enter only your serial number before your call can
be processe d.
For more details about your unit, visit our website at www.mtdproducts.com
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SECTION 1: IMPORTANT SAFE OPERATION PRACTICES
W ARNING: This symbol points out important safety instructions which, if not followed, could endanger
the personal safety and/or property of yourself and others. Read and follow all instructions in this manual
before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol—heed its warning.
WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or
emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm.
DANGER: This machine was built to be operated according to the rules for safe operation in this man-
ual. As with any type of power equipment, carelessness or error on the part of the operator can result in
serious injury. This machine is capable of amputating hands and feet and throwing objects. Failure to
observe the following safety instructions could result in serious injury or death.
TRAINING
1. Read, understand, a nd follow all in struction s on the
machine and in the manual(s ) before a ttempting to
assemble and o perate. Keep this ma nual in a safe pl ace
for future and regular re ference a nd for orde ring
replacement parts.
2. Be familiar with all controls and their prope r operation.
Know how to stop the mach ine and d isengage them
quickly.
3. Never allow childre n under 14 y ears old to operate this
machine. Children 14 years old and over shou ld read and
understand the op eration in struction s and sa fety rules i n
this manual and should be trained and sup ervised b y a
parent.
4. Never allow adults to op erate this machine withou t proper
instruction.
5. Thrown objects can cause seriou s personal injury . Plan
your snow throwing patte rn to avoid discha rge of material
toward roads, bystanders and the like.
6. Keep bystanders, hel pers, pets and chi ldren at l east 75
feet from the machin e while it is in operatio n. Stop
machine if anyo ne enters the area.
7. Exercise caution while operati ng tractor with this
attachment, especi ally wh en traveling in revers e.
PREPARATION
1. Thoroughly inspec t the area where the equipm ent is to be
used. Remove all door ma ts, newspap ers, sleds, bo ards,
wires and other fore ign objec ts which could be thrown by
the auger/impeller.
2. Always wear safet y glasses or eye s hields d uring
operation and while performi ng an adjustment or repair to
protect your eyes. T hrown ob jects whi ch ricochet can
cause serious inj ury to the eyes.
3. Do not operate wit hout wearing adequate winter outer
garments. Do not wear jewelry, long scarves or other
loose clothing which cou ld becom e entang led in m oving
parts. Wear footwear w hich wi ll improve footing on
slippery surfaces.
4. Adjust collector housing hei ght to clear gravel or crush ed
rock surfaces.
5. Disengage all cl utches a nd shift into neutra l before
starting the engine.
6. Never attempt to ma ke any adjustme nts whi le engin e is
running, except where speci fically recom mended in the
operator’s manual(s).
7. Let tractor engine and attachm ent adjust to outdoor
temperature before sta rting to c lear snow.
8. To avoid personal injury or propert y damage use extreme
care in handling gasolin e. Gasoline is extremely
flammable and the v apors are explosive . Serious
personal injury c an occu r when gas oline is spilled on
yourself or your c lothes w hich can ignite . Wash y our skin
and change cloth es imm ediately.
a. Use only an approved gasol ine container.
b. Extinguish all ci garettes, c igars, pipe s and oth er
sources of ignition .
c. Never fuel machine indoo rs.
d. Never remove gas c ap or add fuel wh ile the
engine is hot or running.
e. Allow engine to c ool at le ast two mi nutes be fore
refueling.
f. Never over fill fuel tank. F ill tank to no more than ½
inch below bot tom of fil ler neck to provi de space
for fuel expansion.
g. Replace gasolin e cap and tigh ten secu rely.
h. If gasoline is spilled, wipe i t off the e ngine and
equipment. Move machine to another area . Wait 5
minutes before starti ng the en gine.
i. Never store the machine or fue l cont ainer insid e
where there is an o pen flam e, spark or pilot l ight
(e.g. furnace, water h eater, spa ce heate r, clothes
dryer etc.).
j. Allow machine to cool at lea st 5 min utes befo re
storing.
OPERATION
1. Do not put hands or fee t near rota ting parts, in the auge r/
impeller housing or disc harge chut e. Contact with th e
rotating parts can am putate ha nds and feet.
2. Never operate with a missing or damag ed discharge
chute. Keep all s afety dev ices in pl ace and working .
3. Never run an engine indoors or in a po orly ventil ated
area. Engine exhaust contains carbon monoxide, an
odorless and dea dly gas.
4. Do not operate mach ine wh ile under the influ ence of
alcohol or drugs.
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5. Muffler and engine become hot an d can cause a bu rn. Do
not touch.
6. Exercise extreme ca ution when operating on or cro ssing
gravel surfaces. Stay alert for hidden hazards or traffic.
Do not carry passengers.
7. Exercise caution w hen changi ng directi on and w hile
operating on slop es.
8. Plan your snow throwi ng pat tern to av oid discha rge
towards windows, wa lls, cars e tc. To avoid prope rty
damage or personal injury caus ed by a ricochet.
9. Never direct disc harge at c hildren, b ystander s and pet s
or allow anyone in front of t he machi ne.
10. Do not overload machine capa city by attemptin g to clear
snow at too fast of a rate.
11. Never operate this ma chine with out good visi bility or light.
12. Disengage power to t he auger/i mpeller w hen
transporting or not in use.
13. Never operate mach ine at hi gh transp ort speeds on
slippery surfaces. Look down and b ehind an d use ca re
when in reverse.
14. If the machine should s tart to vibrate abno rmally, stop the
engine, disengage the power take-o ff, lower the
attachment and set the parking brake. I nspect thorough ly
for damage. Repair any damage bef ore starting and
operating.
15. Disengage the power take-off, lower attachme nt, se t the
parking brake and stop en gine befo re you leave the
operating position . Wait until the au ger/impeller comes to
a complete stop before un clogging the disc harge ch ute,
making any adj ustme nts, or in spect ions.
16. Never put your hand in the d ischarge or colle ctor
openings. Always use a cl earing to ol to unc log the
discharge opening.
17. Use only attachm ents a nd acce ssories approved by the
manufacturer (e.g. wheel weigh ts, tire c hains, cabs etc.) .
18. If situations occur which are not covered in this manua l,
use care and good judgment. Cont act your dealer or
telephone 1-800-800-73 10 for assistance and the name
of your nearest s ervicing dealer.
MAINTENANCE AND STORAG E
1. Never tamper with sa fety dev ices. Chec k their p roper
operation regularly .
2. Disengage power take-off, lower the attach ment, set the
parking brake, st op engine and remo ve key to preven t
unintended startin g. Wait un til the a uger/impe ller com es
to a complete stop before cleaning , repairing , or
inspecting.
3. Check bolts, and sc rews for pro per tightne ss at fre quent
intervals to keep the machi ne in sa fe worki ng condi tion.
Also, visually inspect ma chine for any damage .
4. Do not change the engi ne governor setti ng or over-speed
the engine. The go vernor co ntrols the maximum safe
operating speed o f the engi ne.
5. Snow thrower shave plates an d skid shoes are subject to
wear and damage. Fo r your sa fety prote ction, frequen tly
check all compon ents and replace w ith orig inal
equipment manufacturer’ s (O.E.M.) parts onl y. “Use of
parts which do not meet the original equ ipment
specifications may lead to improper performance and
compromise safety!”
6. Check clutch con trols peri odicall y to veri fy they e ngage
and disengage prope rly and adjust, if n ecessary. Refer to
the PTO and safety inter lock sy stem in your t ractor’s
operator’s manual for instru ctions.
7. Maintain or replac e safety and ins truction l abels, a s
necessary.
8. Observe proper dispos al laws and regulation s for gas, oil,
etc. to protect the environment.
9. Prior to storing, run machine a few min utes to c lear sno w
from machine and prevent freeze up of auger/i mpeller.
10. Never store the mac hine or f uel conta iner inside where
there is an open flame, sp ark or pilot light such as a water
heater, furnace, clothes dryer etc .
11. Always refer to the Ope rator’s M anual for proper
instructions on off-season storage.
WARNING — YOUR RESPONSIBILITY:
Restrict the use o f this po wer machine to person s who re ad, unders tand and follow the warnings and instru ctions i n
this manual and on the mac hine.
AND CLOTHING AWAY.
KEEP HANDS, FEET
ROTATING AUGER AVOID INJURY FROM
DANGER
DANGER
1.
KEEP AWAY FROM ROTATING IMPELLER
AND AUGER. CONTACT WITH IMPELLER
OR AUGER CAN AMPUTATE HANDS AND FEET.
2.
DISENGAGE PTO, STOP ENGINE, SET PARK
BRAKE, AND REMAIN ONMACHINE UNTIL
ALL MOVING PARTS HAVE STOPPED BEFORE
UNCLOGGING OR SERVICING.
3.
TO AVOID THROWN OBJECTS INJURIES,
NEVER DIRECT DISCHARGE AT BYSTANDERS.
USE EXTRA CAUTION WHEN OPERATING ON
GRAVEL SURFACES.
READ OPERATOR’S MANUAL.
4.
FOR BALLAST INFORMATION REFER TO
5.
YOUR ATTACHMENT MANUAL.
NEVER PUT HAND IN CHUTE. CONTACT WITH
ROTATING PARTS CAN AMPUTATE FINGERS
AND HANDS.
DO NOT UNCLOG DISCHARGE CHUTE WHILE
ENGINE IS RUNNING.
SHUT OFF ENGINE AND REMAIN BEHIND
HANDLES UNTIL ALL MOVING PARTS HAVE
STOPPED BEFORE UNCLOGGING.
Figure 2 Safety Labels Found on Snow Thrower
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DANGER
SECTION 2: TO THE OWNER
Model 627 42-inch two-stage snow thrower is designed for use on 600-series lawn tractors manufactured in
1996 or later ONLY. It will NOT fit nor operate properly or safely on ANY other tractor. It will NOT fit on any
FastAttach™ compatible tractor.
NOTE: If your 600-series lawn tractor was manufactured prior to 1996, model 627 snow thrower attachment can be
mounted on the tractor with special instructions and minor modifications to the tractor. Phone our Customer Support
Department as instructed on page 2 for details.
NOTE: Referenc es to LEFT and RI GHT indicate the left and right sides o f the tractor when fa cing forward in th e
operator’s position. Reference to the FRONT indicates the grille end; to the REAR the drawbar end.
SECTION 3: CONTENTS OF CARTON
Before beginning installation, remove all parts from the carton to make sure everything is present. Carton contents
are listed below and shown in Figure 3. Part numbers are shown in parentheses.
• One Auger Housing Assembly
• One Undercarriage Assembly with
Upper V-belt (754-0449) & Lower V-belt (754-0330)
• One Support Carriage Assembly
• One Chute Directional Control with Tilt Lever
• One Lift Handle Assembly with Cable
• One Upper Chute Crank Rod
• Two Self-adhesive Reflectors (730-3000)
• Three Cable Ties (725-0157)
• One Extension Spring (732-0626)
• Two Spare Shear Bolts (710-0890A)
& Hex Lock Nuts (712-0429)
• One Flat Washer (736-3019)
• One Hairpin Clip (714-0145)
• Two Hex Screws (710-0376)
• Two Belleville Washers (736-0242)
• Two Lock Washers (736-0119)
• Two Hex Nuts (712-3010)
• Two 1¼-inch Cotter Pins (714-0470)
• One ¾-inch Cotter Pin (714-0507)
with Upper V-belt & Lower V-belt
Lift Handle Assembly
With Cable
Self-adhesive
Reflectors Spring
Extension
Undercarriage Assembly
Cable
Ties
1¼ Cotter Pins
Chute Directional Control
with Tilt Le v er
Support Carriage Assembly
Hex Screws,
Belleville Washers,
Lock Wash ers
and Hex Nuts
Flat Washer
& Hairpin Clip
Upper Chute Crank Rod
Auger Housing Assembly
¾-inch
Cotter Pin
Spare Shear Bolts
& Hex Lock Nuts
Figure 3
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SECTION 4: ASSEMBLY
WARNING: Before installing attachment,
place tractor on a firm and level surface. Place
the PTO in the disengaged (OFF) position, set
the parking brake, shut engine off and remove
key to prevent unintended starting.
NOTE: Your tractor’s cu tting deck and PTO belt must
be removed prior to mounting the snow thrower
attachment. Refer to your tractor’s Operator’s Manual
for detailed instru ctions. Retain all the deck hardware
and store it in a safe pla ce. If your tractor is eq uipped
with any front-end acc essory such as a front bumper
kit, it must also be removed.
NOTE: It is strongly recommended that a second
person act as an assistant through out the assembly of
the snow thrower atta chm ent . Ha vi ng a sec ond pe rson
present eases the completion of many of the steps.
Mounting the Support Carriage Assembly
1. Fasten the provided hex screws, belleville washers,
lock washers and lock nuts to the tractor’s front
pivot bracket as illustrated in Figure 4 on both the
left side and the right side. Do NOT tighten the
hardware at this point in the assembly.
2. Place the tractors front tires on 2x4s to bring the
tractor’s front end up a few inches and allow
clearance for positioning the support carriage.
3. Remove the hex scr ews, lo ck wa shers an d hex
nuts from the both sides of the rear of the support
carriage asse mbly.
4. Place the support carriage assembly between the
tractor’s front tires so that the large notch on both
sides of the support carriage straddles the tractor’s
front pivot bar. See Figure 5.
5. Position the rear of the support carriage so that the
holes where the hardware was just removed align
with the holes in the tractor’s frame rail.
Large Notch
Hex Screw,
Belleville Washer
NOTE: The lock washer and hex nut
are on the INSIDE of the pivot bracket.
Figure 4
Front Pivot Bar
Support Carriage
Figure 5
NOTE: Make certain that the support carriage is to the
OUTSIDE of the frame rail on both sides of the tractor.
6. Reinsert the rearmost hex screw removed in Step 3
through the aligning holes in both the support
carriage assembly and the tractor’s frame rail.
Fasten with the lock washer and hex nut but do not
tighten the hardware at this time. See Figure 6.
7. Pivot the front of the support carriage upward until
the small grooves found in the front portion of
support carriage slide between the belleville
washers ins erted in ste p 1 an d the tract or’s f ront
pivot bracket. See Figure 7.
Hex Screw
NOTE: The lock washer and hex nut are
on the INSIDE of the tractor’s frame rail.
Figure 6
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